APA-viite (7. p.)

Heywood, A. (2016). Key Concepts in Politics and International Relations (2nd.). Palgrave.

Chicago-viite (17. p.)

Heywood, Andrew. Key Concepts in Politics and International Relations. 2nd. London: Palgrave, 2016.

MLA-viite (9. p.)

Heywood, Andrew. Key Concepts in Politics and International Relations. 2nd. Palgrave, 2016.